Brewster, David, Sir, 1781-1868, Bache, A. D. (Alexander Dallas), 1806-1867 · Philadelphia : Lea and Blanchard · leaf 414
)- i) THEORY OF THE RAINBOW. 85 — cos. (i — i) — cos. (»— »), cos. (i -f- t)cot. <j> = cos. (i — »),or the light is repolarized at the second refraction, and the effect ofthe plate is that of a single surface.* CHAP. VII. OF THE RAINBOW. (127.) To explain the theory of the rainbow, wc begin… … ll>^ Let RL be a ray of light, meeting the refracting sphere LMNPat L, and refracted into LM: LM meeting the second surface ofthe sphere at M, is in part reflected into MN, which farther suffersreflexion at NP, taking the direction NP; that part of NP whichis not reflected, passes out of the…
Optics
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